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Finding the Fourth Proportional to 223,479.48, 308,401.68 and 122,877.48

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Solution

The fourth proportional to 223,479.48, 308,401.68 and 122,877.48 is: 169,570.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,479.48 : 308,401.68 = 122,877.48 : x
  2. Step 2: Convert to fraction form
    223,479.48/308,401.68 = 122,877.48/x
  3. Step 3: Cross multiply
    223,479.48x = 308,401.68 × 122,877.48
  4. Step 4: Simplify right side
    223,479.48x = 37,895,621,266.17
  5. Step 5: Solve for x
    x = 37,895,621,266.17/223,479.48
  6. Step 6: Final answer
    x = 169,570.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.